What is CVE-2020-35231?

CVE-2020-35231 is a high-severity vulnerability in NETGEAR Gs116e, classified under Improper Authentication. CVSS score: 8.8/10. Published 2021-03-10.

How severe is CVE-2020-35231?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in NETGEAR Gs116e

CVE-2020-35231

The NSDP protocol implementation on NETGEAR JGS516PE/GS116Ev2 v2.6.0.43 devices was affected by an authentication issue that allows an attacker to bypass access controls and obtain full control of the device.

Vulnerability class: Broken Authentication

Published 2021-03-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.011 (64.3th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 64.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

NETGEAR Gs116e — versions v2
NETGEAR Gs116e Firmware — versions 2.6.0.43
NETGEAR Jgs516pe
NETGEAR Jgs516pe Firmware — versions 2.6.0.43

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

research.nccgroup.com/2021/03/08/technical-advisory-multiple-vulnerabilities-in… (Vendor Advisory)

Frequently asked questions

What is CVE-2020-35231?: CVE-2020-35231 is a high-severity vulnerability in NETGEAR Gs116e, classified under Improper Authentication. CVSS score: 8.8/10. Published 2021-03-10.
How severe is CVE-2020-35231?: High severity. CVSS v3 base score is 8.8 out of 10.